Evolution of Speech: Anatomy and Control.

Area of Science:

• Evolutionary biology
• Linguistics
• Neuroscience

Background:

• Language evolution is a complex field.
• Understanding speech evolution requires an evolutionary perspective.
• Motor control plays a crucial role in speech production.

Purpose of the Study:

• Critically review research on speech evolution within the context of motor control.
• Highlight the utility of an evolutionary approach to studying speech.
• Explore methodologies for investigating evolutionary questions in speech.

Main Methods:

• Comparative research with related species (e.g., great apes).
• Experimental and observational research.
• Computer and mathematical modeling.

Main Results:

• Speech adaptations likely evolved gradually.
• Speech motor control is a probable area of significant evolutionary selection.
• Precursors for speech motor control are present in closely related species.

Conclusions:

• Empirical evidence for speech evolution should be sought in speech motor control.
• Research in this area is currently in its early stages.
• Comparative and theoretical analyses support gradual evolution of speech adaptations.